Senad83
Mechanical
- Jul 13, 2007
- 43
Hello all,
I have a question regarding dead loads in Riks step. According to Abaqus theory manual any loads that exist at the beginning of the step and are not redefined are treated as “dead” loads with constant magnitude. . A load whose magnitude is defined in the Riks step is referred to as a “reference” load. All prescribed loads are ramped from the initial (dead load) value to the reference values specified.
The loading during a Riks step is always proportional. The current load magnitude, P_total, is defined by
Ptot = Po + ?(Pref + Po),
where Po is the “dead load,” Pref is the reference load vector, and ? is the “load proportionality factor.”
As I can see from this formula, Po is not treated as a dead load with constant magnitude since it's multiplied with the load proportionality factor ?. Is there something I have missunderstood here?
I have a question regarding dead loads in Riks step. According to Abaqus theory manual any loads that exist at the beginning of the step and are not redefined are treated as “dead” loads with constant magnitude. . A load whose magnitude is defined in the Riks step is referred to as a “reference” load. All prescribed loads are ramped from the initial (dead load) value to the reference values specified.
The loading during a Riks step is always proportional. The current load magnitude, P_total, is defined by
Ptot = Po + ?(Pref + Po),
where Po is the “dead load,” Pref is the reference load vector, and ? is the “load proportionality factor.”
As I can see from this formula, Po is not treated as a dead load with constant magnitude since it's multiplied with the load proportionality factor ?. Is there something I have missunderstood here?
